Earnings Per Share

3 Months Ended

Mar. 31, 2023

(9) Earnings Per Share

The following table presents the components of basic and diluted earnings per share (in thousands, except per share amounts):


	Three Months Ended March 31,
	2023			2022
Net earnings attributable to Kirby	$	40,698		$	17,434
Undistributed earnings allocated to restricted shares		(2	)		(3	)
Earnings available to Kirby common stockholders – basic		40,696			17,431
Undistributed earnings allocated to restricted shares		2			3
Undistributed earnings reallocated to restricted shares		(2	)		(3	)
Earnings available to Kirby common stockholders – diluted	$	40,696		$	17,431

Shares outstanding:
Weighted average common stock issued and outstanding		59,981			60,182
Weighted average unvested restricted stock		(3	)		(9	)
Weighted average common stock outstanding – basic		59,978			60,173
Dilutive effect of stock options and restricted stock units		294			290
Weighted average common stock outstanding – diluted		60,272			60,463

Net earnings per share attributable to Kirby common stockholders:
Basic	$	0.68		$	0.29
Diluted	$	0.68		$	0.29

Certain outstanding options to purchase approximately 0.3 million and 0.4 million shares of common stock were excluded in the computation of diluted earnings per share as of March 31, 2023 and 2022, respectively, as such stock options would have been antidilutive. There were no antidilutive RSUs as of March 31, 2023 and 2022.